Coiling filamentary articles



July 24, 1951 w. D. BOYNTON COILING FILAMENTARY ARTICLE 8 Sheets-Sheet 1 Filed March 9, 1949 //vv/v TOR W. 0. BOVN TON A T TORNEV July 24, 1951 w. D. BOYNTON COILING FILAMENTARY' ARTICLE 8 Sheets-Sheet 2 Filed March 9, 1949 Ill INVENTOR W D. BOVNTON ATTORNEY July 24, 1951 w. D. BOYNTON COILING FILAMENTARY ARTICLE 8 Sheets-Sheet 5 Filed March 9, 1949 INVFA/ 70/? W D. BOYN TON ATTORNEY July 24, 1951 w. D. BOYNTON COILING FILAME'NTARY ARTICLE 8 Sheets-Sheet 4 Filed March 9, 1949 l I I ATTORNEY W- D. BOYNTON COILING FILAMENTARY ARTICLE July 24, 1951 8 Sheets-Sheet 6 Filed March 9, 1949 FIG. .9

FIG. /'0

FIG.

lNl/ENTOR W 0. BOY/V TON ATTORNEY FIG. 12

July 24, 1951 w. D. BOYNTON COILING FILAMENTARY ARTICLE 8 Sheets-Sheet 7 Filed March 9, 1949 FIG. /3

INVENTOR W D BOVN TON av ATTOPNEV July 24, 1951 w. D. BOYNTON I COILING FILAMENTARY ARTICLE 8 Sheets-Sheet 8 Filed March 9, 1949 FIG. /4

INVENTOR w 0. sor/vro/v 5 ATTORNEY Patented July 24, 1951 Wentworth D. Bo ynton,

to Western Electric New York, N. Y., a

Baltimore, Md; assignor Company, Incorporated, rporation oif'New York Application March 9, 1949, Serial No. 80,476 i 25 Claims. (01. 242 435) This invention relates to coiling filamentary articles, and more particularly to methods of and apparatus for electrically testing, metering and coiling filamentary articles. l

In general, filamentary electrical conductors are manufactured by means of a substantially continuous process in which the metallic core of the conductor is advanced continuously from a supply thereof through a series of treating apparatus and processes to produce a finished conductor which then is taken up into coils each having a predetermined length of,the conduc tor. When the supply thereof is exhausted, the end of a like filamentary core from another supply, is connected to the trailing end of the exhausted supply in order to maintain a continuous supply of conductor to the treating and coiling apparatus. It has been the practice in manu facturing electrical'conductors to passthe completed conductor through suitable electrical testing apparatus adapted to detect andindicate the presence of such connections and other defects in the conductor insulation which provide paths of reduced dielectric strength therein so thatsuch coils may be rewound and cut to remove the connection or defects. This procedure often produces coilswhich contain less than the minimum length of conductor allowed per coil, in which case, such coils result in substantial waste of the conductor. The present invention contemplates coiling up the conductor in such a manner that when a coil in process contains a connection or defect in the insulation of the conductor; an additional length of the conductor is coiled were ,on so that when the coil is cut to remove the connectionor defect, the resulting coils will contain at'least the minimum length of conductor allowed per coil. l l An object of the invention is to provide n'ew and improved methods of and apparatus for coil- 'ing a continuously advancing filamentary core into predetermined lengths. f

A method of coiling filamentary materials in-- to predetermined lengths illustrating certain features of the, invention, comprises advancing a filamentary material from a supply thereof along a predetermined p'athof travel, passing the advancing material through means positioned at predetermined spaced points along itspath of travel for detecting defects in thematerial, and 50 coiling up the filamentary material at the end of its path of travel into coils each havinga predetermined length of the material if no defects were detected after the coil in process contained a predetermined length of the material or coiling 55 2 an additional predetermined length of the material on the coil in process if a defect is detected th material after said predetermined length of the material is coiled up on the said coil in process, whereby when a defective coil is cut to remove the defect each of the resulting coils will contain at least a predetermined length of the material. l v

, An apparatus illustrating certain features of the invention comprises means forcontinuously advancing a filamentary material along a predetermined path of travel, means spacedly positioned along the pathof travel of the material for detecting defectstherein, means for coiling up thematerial at the end of its path of travel. means forselectively terminating the coil in process when it contains a predetermined length of the material if there are no defects withina predeterminedportion of the coil or continuing the said coil in process until an additional predetermined minimum length of the material is coiled on the coil in process when a defect is detected within said predetermined portion of the coil in process, whereby when a defective coil is out to remove the defect the resulting coils will contain at least. the predetermined minimum footage of the material required per coil.

Other objects and advantages of the invention will be understood by reference to the following specification and accompanying drawings, in

which: g

lg. 1 is a side elevation of a portion of a continuous extruding and vulcanizing apparatus embodying certain featuresof the invention;

. Fig ,ziis aside elevation of a portion of the apparatus shown in Fig. 1, and extending to the left oi the apparatus shown in Fig. 1;

V Fig, 3 is an enlarged fragmentary view of a portion oi the left end of the apparatus shown in Fig. 2; w l i Fig. 4 isanenlarged fragmentary, sectional view talgen alongline 4 4 of Fig. 3;

N Fig. 5 isanenlarged elevation of a portion of the apparatus shown in Fig. l

Fig. 6 is a fragmentary, sectional view taken along line -6 of i Fig. 2;

. ,Figs. 7 and 8 combined, constitute a schematic wiring diagram of the electrical system embodied in the pertinent apparatus'of the invention;

Fig. 9 is a fragmentary, sectional view of a portion of the apparatus modified in accordance with an alternate embodiment of the invention;

Fig 10 is a front elevation of a counter modified in accordance with the alternate embodimentof the invention;

,line 12-42 of Fig. when and ii ie provided with a suitable weight which constantly urges therethrough.

3 Fig. 11 is a vertical, sectional view taken along line ll-H of Fig. 10 when looking in the direction of the arrows; V y

Fig. 12 is a vertical, sectional view takenaalong looking in the direction of the arrows; and

Figs. 13 and 14 combined, constitute a schematic wiring diagram of the electrical control circuit and apparatus for the alternate embodiment of the invention.

In the apparatus shown in Figs. 1 and 2, a lilamentary core H], which may be a bare filamentary conductor or an insulated conductor, is wound on a supply reel H which is rotatably mounted so that the core it] may be withdrawn therefrom. The core ill is withdrawn from the reel H by a capstan I2 driven in a counterclockwise direction by a suitable power means (not shown), passes around a guide pulley 14 positioned directly'above the reel H and then under pulleys i8 and il; rotatablymounted on the support po sitioned adjacent "to the base of a cutover' tower 8. The coreill also passes over a pulley 20 which is positioned intermediate the pulleys it: and connected to an endless chain'belt the pulley 2b toward the top of the cutover tower. The pulley 20 normally is latched in its lowermost position on the cutover tower.

Suitable bra-king is applied to the reel I so that 2 a predetermined tension is exerted on the core it as it is withdrawn from the reel H.

The core l0, after passing around the capstan l2 several times, advances therefrom through an extruding head 23 forming a part of a conventional screw type extruding apparatus 24 which serves to apply a vulcanizable coveringaround the advancing core ldto form an insulated or jacketed conductor 25. The conductor '25 passes ,irom theextruding head through an elongated tube 22 having high pressure, high temperature steam therein for the purpose of vulcanizing the insulating covering as the conductor 25 passes generally at 30, and thereafter passes around a guide sheave 33 which'reverses the directionof travel of the conductor, whereby the conductor now is traveling from left to right in Figs. 1 and 2.

The conductor 25 passes along a V-shaped trough 3-6 which is partially filled with water, to an air-wiper 31 provided for the purpose of removing the moisture on the insulatedcovering of the'conductor 25. The dry conductor emerging from the air-wiper passes around :a capstan lib driven in a clockwise direction by the same power means provided for the capstan l2 and thereafter travels from right to left around a pulley 23 to a pulley M rotatably mountedon a bracket 15 adapted to ride on a T-shaped rail N8. A drum 56 is suitably mounted "on the apparatus and is provided with a steel cable wound thereon, a portion of which is'withdra'w'n therefrom and'connected to the bracket M carrying the pulley 45. The drum 5D is provided with an internal spring mechanism which maintains-a The conductor 25 passes from the 7 ductor 25 continues moving to the left and passes around a pulley 53 and then upwardly at an angle and arounda pulley 5a which guides the conductor through a high voltage electrode 55 mounted in a housing 58. The conductor 25, upon emerging from the electrode 55, passes around the pulley Eli, and travels downwardly and around a pulley 6| and then travels to the right to a pulley G2. The conductor 25 passes around the pulley E'Zyunder a pulley 63 which guides a conductor to a pulley Ell, which guides the conductor through a second high voltage electrode 61, provided in the housing 58. The conductor 25 travels from the electrode 67 to a capstan ll mounted in a housing i2 and arranged to be driven by a motor I i. The capstan it serves to advance the conductor 25 from the capstan 49 beneath a knife 73 arranged to'be actuated by a solenoid W and then through a tube 16 which guides the conductor 25 to a pulley l1 rotatably mounted on the end of a traversing shaft 18.

The conductor '25 is shown in Fig. 2 as passing around the pulley ii and being coiled up by a coiling headfill rotatably mounted on a support a: and driven by a motored. As the coiling head is rotated to take up the conductor 25, the traversing shaft 18 serves to move the pulley transversely to the rotating axis of the coiling head so as to distribute the conductor evenly on the coiling head. A second coiling head =84 is conductor 25, wherein, as soon as the coiling head in operation has coiled up a predetermined footage'of the conductor 25, theconductor is severed by the knife 13 and the end of the conductor emerging from the capstan lll may be secured to and coiled up by the other coiling head while the previously wound coil is removed from the coiling head. A cover 8? is pivotally mounted on the stand 8! so that it may be selectively positioned to enclose the particular coiling head that is operating to coil up the conductor 25. The movement'of the cover from a full coiling head to an empty coiling head is arranged to deenergize the motor driving the full coiling head nd energize the motor provided to drive the empty coiling head.

The housing containing the electrodes 55and 61 is positioned as close to the kniie'l'S as the apparatus will permit in order to locate the loop in the path of travel of the conductor 25jsubstantially at the end of its path or travel, that is, the knife 13. The loop formed in the path of travel of the conductor between thefirst electrode 55 and the second electrode 61 is designed to have a length equal to the minimum length of'the conductor 25 required coiling heads can be automatically controlledgin a manner hereinafter to be described, so as to coil up at least the minimum length of conductor on a coil which contains a defect therein, whereby when such a coil is cut to remove the defect the short coil will contain the minimum length .of conductor allowed per coilj 'In the present r the conductor allowed per coil.

80 and 84,

per coil so that the.

and moves the lever The counter 86 (Figs. 3and 4) is a conventional counter having at least a units, tenths and hundredths wheels 90-90 arranged to be driven so as to record the footage of the conductor 25 being coiled up by the coiling heads by the motor II. A cam 9| is secured to thehundredths wheel 90 and provided with five equally spaced lobes 9292 about its periphery, each of which has an arcuate length sufiicient to bridge two digits on the hundredths wheel 90. The cam BI is secured tothe hundredths wheel 90 so that each lobe 92 bridges a successive pair of digits consisting of one even digit and one odd digit, so that digits and "1; 2 and 3; 4 and 5, and etc. are bridged thereby. A roller 93 mounted on a pivotally mounted arm 94 is urged to ride on the periphery of the cam 9| by a tension spring 95 secured to the free end of the arm 94 and the counter structure. The free end of the arm 94 is arranged to actuate the operating button of a sensitive switch 90 positioned in the counter each time the cam is advanced two digits, that is, each time an even digit is positioned opposite the window of the counter 86.

A second supply reel 98 having a core like the core I0 wound thereon, is also mounted on a rotatable support in order that the core may be withdrawn therefrom. When substantially all of the core I0 is withdrawn fromthe reel II, the brake applied to the reel is released so that the weighted pulley of the cutover tower I8 rises to the top of the cutover tower and thereby forms a loop in the path of travel of the core I0 from the reel II to the capstan I2. As the end of the core I0 leaves the reel II, a clamp indicated generally at I00 (Figs. 1 and 5) is actuated to clamp the core I0 tightly in the pulley I6 whereby further advancement of the core I0 is prevented. The end of the core withdrawn from the reel II is then spliced to the end of the core wound on the reel 98. During the period of time required to make the switchover from the supply reel II to the supply reel 98, the capstan 40. continues to advance the conductor through the extruding and vulcanizing apparatus and in so doing takes up a substantial portion of the loop formed at the cutover tower I8 by the pulley 20. When the splice is completed, the brake I00 is actuated to release the core I0 and permit the capstan I2 to advance the core from the supply reel 98 which thereafter pass through the apparatus in the above-described manner to the coiling heads 80 and 84 positioned at the left end of the apparatus.

The clamp I00 (Fig. 5) provided on the cutover tower I8 consists of a handle IOI secured to a shaft I02 rotatably mounted on a bracket I03 which supports the pulleys I6 and I1. An arm I05 is also secured on the shaft I02 so that when the handle I III is actuated to its broken line position shown Fig. 5, a portion of the arm engages the core I 0 and clamps it tightly against the bottom of the groove of the pulley I6. At the same time, the opposite end of the arm I05 engages an operating lever I06 of a switch I01 I06 to its broken line position. When the lever I06 is in its broken line position it closes a normally open contact provided in the switch of electrical apparatus hereinafter to be described, so as to deenergize the high voltage electrodes and 61 provided in the housing 58 while the connection is made between the ends of the cores.

6 The core I0 is suitably grounded at the supply reels II and 9B, and at the coiling heads 84 and I0! which controls a system 85. A high voltage testing circuit is provided in which one side thereof is grounded and the other side thereof connected tothe electrodes 55 and 61. As the conductor 25 engages the electrodes 55 and 61, a voltage isvimpressed across the insulating jacket of the conductor having an intensity suflicient to break down any faults in the insulation, including splices, which provide paths of reduced dielectric strength between the electrodes and the metallic conductor of the core I0. The electric circuit for controlling the operation of the coiling heads and 84 is interlocked with the control circuit of the electrical testing apparatus associated with the electrodes 55 and 51 so that the footage of conductor coiled up on the coiling heads is determined by the presence or absence of faults or splices in the insulating covering of the conductor.

The insulating and coiling apparatus described hereinabove, is automatically controlled .by an electrical system shown in Figs. 7 and 8 so that each of the coiling heads 80 and 84 normally will alternately coil up coils having a predetermined footage of the filamentary conductor 25 thereon unless there are defects in the insulationof the conductor 25 within a predetermined distance from the start of I a normal coil, in which case, additional footage of the conductor 25 is coiled up by the coiling head in operation so that when the coil is cut to remove the defect, the two coils produced thereby will contain at least the minimum footage required per coil. The electrical system for controlling apparatus shown schematically in Figs. '7 and 8 comprises low voltage busses H0 and IIIfrom which all the control apparatus receives its operating potential. An operating coil II3 of a step-selector relay. H4 is connected across the busses H0 and I II in series with a normally open contact II5 of the switch 96 provided in the counter 86 and arranged to be actuated by the cam 9|. The relay I I4 is provided with a pivotally mounted arm I20 arranged to successively engage one of a plurality of contacts I2I--I2I each time the coil I I3 is energized by closure of the contact H5. The opposite end of the arm I20 is connected to the bus I I0 and is mechanically connected to a reset coil I 23, which when energized serves to return the arm I 20 from the lowermost contact I2I to the uppermost contact I2I which is the normal starting position arm. The first three contacts I 2II2I of the relay II4 are open-circuited, which means that for two successiveclosures of the contact II5 by the lobes 92-92 on the cam 9| merely advances the arm I20 of the relay II4 to the third contact I2I.

The fourth contact I 2| is connected to a coil I25 of the relay I 26. the other side of the 0011 being connected to the bus I I I in series with a contact I21 provided on a fault detector relay I28. The fifth contact I2I of the relay H4 is connected to a'normally closed contact I30 provided on the relay I26, the other side of which is connected to one side of a coil I36 of a relay I31. The other side of the coil is'connected to a terminal I38 which is connected directly to the bus III. The fifth contact I2I also is connected directly to one side of a coil I40 of a relay I4I, the other side of which coil is connected to the bus III in series with a normally open contact I42 provided on the fault detector relay I28. The sixth contact I2I of the relay H4 is connected to one side of a normally closed contact I 43 provided on the relay MI, the other side of which is connected to a terminal I44 provided between the contact I30 and the coil I 36. The seventh nected to the bus I II in series with a normally open contact 221 provided on the relay I31, a normally open switch 228 arranged to be actuated by a cam 229 driven by a motor 230 includedin the timer 226, a coil 23I of the relay 225, and the normally open contacts of the push button 2I8. The motor 230 of the timer 226 is connected across the busses I I and I II in series with either of the contacts 202-202 or 2I2-2I2 depending upon the position of the cover 81, the normally open contact 221 of the relay I31, the normally closed contact 224 of the relay 225 and the contacts of the push button 2I8.

The relay 223 is provided with normally open contacts 232-232 which are arranged to be actuatedto their closed position by the coil 222 andthereby connect the motor 1I driving the capstan to terminals 233-233 which may be connected to a suitable source of a three phase A. 0. potential. The relay I14 is provided with normally open contact 235-235 which are arranged to be actuated to their closed position upon the energization of the coil I13 and thereby connect the motor 85 driving the coiling head 84 to the terminals 233-233. The relay I16 provided with normally open contacts 236-236 which are arranged to be actuated by the coil I15 to their closed position and thereby connect the motor 82 driving the coiling head 80 to the terminals 233- 2313.

Operation Let it be assumed that the core I0 has been withdrawn from the reel II, manually threaded through the extruding and vulcanizing apparatus and secured to the coiling head 84. Th apparatus is operated to draw the core I0 through the apparatus to obtain a completely insulated and vulcanizing conductor 25' at the coiling head end of the apparatus. The end of the conductor 25 is secured to the coiling head 80. The normally open contacts of the push button 2I3 also are actuated to their closed positions and are designed to remain latched in the closed position so that the coiling heads may be automatically controlled by the counter 86 and the cover 81.

While the conductor 25 is being secured to the coiling head 88, the cover 81 is positioned so as to enclose the coiling head 84 and the testing electrodes are deenerg'ized. When the conductor is properly secured to the coiling head 80, the cover then is moved to enclose the coiling head 80 whereupon the movement of the cover sets the limit switches I6I and I63 in the position shown in Fig. 8, in which case, the contact arm 206 bridges the contacts 201-201 and connects the coil I15 of the relay I16 across the busses H0 and II I in series with the normally closed contact 2I1 and the closed contacts of the push button 2I8. This energizes the coil I15, which in turn, closes the contacts 286-236 and connects the motor 82 driving the coiling head 80 to the terminals 233- 233 whereby the coiling headstarts to coil up the conductor 25 being advanced through the extruding head 24 and vulcanizing tube 28 by the capstans I2 and 40.

The contact 2I0 (Fig. 8) of the limit switch I63 bridges its associated contacts 2I2-2I2 and connects the coil 222 across the busses I I0 and II I in series with the normally closed contact 224 of the timer 226 and the contacts of the push button 2I8. Energization of the coil 222 closes the normally open contacts 232-232 which connect the motor 1| which drives the capstan 10 to the terminals 233-233. This feature provides simultaneous energization of the motors H and 82,

whereupon the capstan 10 andthe coiling head cooperate to advance the insulated conductor 25 from the capstan 40 so that it may be coiled up by the coiling .head 80. The combined torque of the capstan 10 and the coiling head 80 is sulficient to overcome the tension of the drum 50, whereupon the pulley 44 carried on the bracket 45 is moved to its left-hand limit on the T-rail 48, in which position it forms only a very short loop in the path of travel of the conductor 25 between the capstan 40 and the capstan 10.

The coil I64 (Fig. '7) of the time delay relay I65 is connected across the busses H0 and III in series with the normally closed contact of the push button I66 and the normally closed contact I61 of the switch I01 whereupon its contact I 10 is arranged to close a predetermined period of time after the coil I64 is energized. As soon as the relay I16 is energized to start the motor 82, it closes its contact I12 which in turn connects the coil I11 across the busses in series with the closed contact I10 of the time delay relay. Energization of th coil I11 closes the contact I83, which in turn connects the voltage regulator I8I across the busses H0 and III in series with the normally closed contact I82. When the voltage regulator I8I is energized, it in turn energizes the transformer I which applies a high potential to the electrodes 55 and 61. Hence, the high voltage testing circuit is energized and the electrodes 55 and 61 connected thereto apply a potential across the portion of the insulatingcover and the central conductor passing through the electrodes 55 and 61 after the motor 82 is energized to drive the coiling head 80 to coil up the conductor 25. I

Let it be assumed for the purpose of illustrating the invention, that it is desirable to have the coiling heads 80 and 84 normally coil up 800 feet of good conductor 25 at each coiling operation thereof. Let it further be assumed that the minimum footage acceptable per coil is 200 feet of good conductor 25. Should a defect or a splice occur in the portion of the insulation of the conductor 25 passing through the second electrode 61 within 200 feet from the end of a normal 800 foot coil, it then is necessary to coil up at least 200 feet more of the conductor or the coil on the coiling head in operation so that when the coil is re-- wound for the purpose of removing the defect, two coils will be produced from the coil each of which contains at least 200 feet of good conductor.

As the conductor 25 is coiled up by the ceiling head 80, the counter 86, which is driven by the motor 1I, continually indicates the footage of the conductor 25 being coiled. In order to obtain the operating sequence, the cam 9| provided on the hundredths wheel of the counter 86 is arranged to actuate the sensitive switch96 and close its normally open contact H5 each time 200 feet of the conductor 25 has been coiled up by the coiling head in operation, which is assumed to be the coiling head 80. The arm I20 of the step selector relay H4 is in engagement with the first contact position I 2| when the apparatus is first placed in operation. When 200 feet of conductor has been coiled up on the coiling head 80, the cam 9| closes the contact II5 to energize the operating coil II3 andadvance the arm I28 to the second contact position I2I which is open circuited. When 400 feet of conductor have been coiled up on the coiling head 80, the cam 9| again actuates the switch H5 to energize the coil H3 and advance the arm I20 so it engages the third contact I2I which is also'open circuited. I I

When'600 feet of the conductor have been coiled up; the arm I20 is advancedto the fourth contact' I2 I in which-position it connects the fourth contact-I21 to the bus I-IIl. With thearm: IZ in this position, the coil I25 of the relay I263 is connected acrossthe busses I-I'and' I II in series with the arm I20 and thenormally open.con-' tact I'21Tof the fault detector. relay I28-whose coil I 91 is connected in series with the high potential winding Ill-010i: the transformer I85. Since the contact: I21 is normally open, the circuit' to the coil: I25. remains open circuited, and the contact: I3Il remains: in its normallyuclosed position. When 800 feet of conductor have been coiledzupi-by the coilingshead 80, the cam 9| again clbsesithe contactaI'I5 and energizes the coil H3 tcr advance: the arm. I20 so that it engages the fifth". contact I 21; Ifrno-fault providing-apath' of reduced. dielectric strength in the insulating coverrof: the conductor. passes through. the second electrode 61 afterrthearm. I20. engages the fourth. contact I2-I; that is, 'aiter'GOOieet of. the conductor has been coiled up the contact I"; of the relay' remains in! its normally closed. posi--. tion. Underthese conditions,.when thearm-JIMJ. engages the fifth contactJZL it: connects the;:coi1 I136 of. the: relay I30.- directly across; the busses I I0.-and. .I Miniseries with the arm.l20 and: a normally ClOSBdzCOTltLCt I30:of the relay: I26. The coil.' I36: is. thereby energized. and closes its contact I 45 whichzconnectsithe solenoid .14. across-the busses H0 and: I.I whereupon the-cutter blade I3is;actuated to. sever. the conductor 25.

The arm IZD remains-in: engagement with" the fifth-contactv I2I and holds thecoil: I36 across the busses III! and III so that the so1enoid.-,op erating the knife 'ISIremains energized after: the conductor hasbeen severedthereby. The-non mallyyclosedcontact' I82 provided on therelay I31 isopened and therebydeenergizes the voltagerregulator' 8 I. and the-high voltage. transformer I8.5 connected to the electrodes 55 ands] when the-knifeblade I3 is actuated by the -solenoidll li .Attthe same. time that the contact I82'isopened the. contact..2 I I, also provided on the relay I3I-,:is'

opened; Whereuponthe coil I-I- is disconnected from the busses III) and III and deenergizedl The deenergization of the coil Il5.al1ows the contacts 2'3E.23.6 to drop open and disconnect the... motor 8.2-. driving. the coiling head 80 to the terminals 2 33--2 33 and. the coiling head: 8i] comes to a stop. I

Since the conductor 25 has beensevered by the knife. I3, and the motor 82disconnected from the terminals 233-233upon the operation of the relay, I31; the capstan I0 driven-by'the moton II. continuesto advance the conductor 25 from the capstan. 40- at a. decreased linear speed with .respect to. the. linear. speed of. theconductor: leavingthe capstan 40. The differencebetween the linear speedof: the'conductor 25 at the capstan 4'0. and atthe capstan I0 is taken up by the pulley. 44 which moves to=the right due to the tension. exerted on the-pulley 44 by the spring biased. drum. 50 and thereby. expands the-loop in.the path of travel ofthe'conductor. The capstanrlfl drivenby the motor "II continues-to ad.- v-ance. the conductor 25. through the tube l6rso thattheendof; the severed conductor-maybe secured-to theempty coiling head'fie.

At the same time there'lay- I31 (Figs. 7 and 8) opensthenormally closed contact 2 I! todeenergizethemotor 82 asdescribed, the normally open contact22'l is closed. Closure of the contact 22'! connects the motor 230 of the timer 226. across the'husses I I03 and I I I: in series with the contact 224 of the relay. 2251and= the contactsiofathe push button 218. Afterithe motor 230 has; operated. forai predetermined timing. cycle the cam 229? driven thereby. closes'the switch 228lwhicn con-e nects thecoilZBi across the busses I'llliand l-zlli-L' Energization of the coil 23I' opens the normally: closed contact 224 and the coil 222. of thezrelay 2Z3 is deenergized, whereupon the conta'ctsi23.2= 2.32 dropopenanddisconnect themotori'l l from theterminals 233 -23 3 Upon the deenergizatioir of'the motor the capt'san: T0 c0mes' to rest'ann further movement of the conductor 25 attthe coiling heads is prevented} Upon the stoppage of the capstan "I02 the pulley 44 continuesto move-to the right and form asubstantial'lbop in=the path of travel of the conductor. The timer' 2 26permitsthe coil 222 of'therelay 223 to remain energized for a suflicient' period of time after the-coiling head 80 is stopped to-a'll'ow the motor II-and the capstan T0 to advance" enough of the-conductor' 25 through-the tube Iii so that the end of the conductor maybe=secured to=-tlic c'oiling-headiifli '"While the end of the conductor 25" isat rest the operatorsecures it to-a coiling head'B I and then moves the coiling head cover 81 from it's left hand position to its right-hand position i (Fig: 2) A's-the cover 81 i is" movedfrom its' left+hand position to its right-hand position to enclosetlie coiling head 84, it actuates the limit switch I53 so as to.move-the-contact arms-.206 andr2i0-to their broken line position. as: the cover. passes through its-mid-position. When-the contact: 206

" bridges-the contactsrlfiZ-JBZ, itconnectsall the reset-coils-a'crossthe busses- II 0 and I .I I, in which case, v each reset? coil is. energized. to actuate its respective latching-mechanism. The coil I23b.e.-

ing so energized returnsthe arm. I20; of the relay. IIIL to its normal starting; position where: iten:- gages-the first; contact; I2I. When the-:arm: I121. is reset. toits. normal; Starting position, the. coil I3 B- of-.the relay- I131 is deenergizedwhich allows the. contacts-I82 and- 2H to resume their. normally closed positions andthe contacts I45: and 222 to resume theirnormally open positionszwhcreupon the solenoidl l'is deenergized and-thecutter bladereturnsto its position above-"the conduc- As. the coverz'moves from-its mid-positionto: its extreme rightehand-position; it leaves the switch I 6.3 in:this;position and actuates: the limit: switch IBI so that: the, contact arms I96 and. 2001' are moved to. their; broken line positions, in. which position, the contact arm. IBIS. engages: contacts I91--'I9l: and the contact arm 200 engages the contacts1202202. This position of the contact arm I9Bopensthe circuitzfor the reset'coils and connects the-,coil I13 of the relay I14 acrossthe busses H0 and. '1'? in. series with the normally closed; contact" 2 I 1. and the closed: contacts 'of' the push button 218*. The energization of the coil Ila-"closes the contacts 235-235 whichconnect the motor to the-terminals 233 433; whereupon the motor is energized and drivesthecoilihgfhead 84 so that it starts to coil up the-filamentaryconductor 85. The movement of the contact arm. 2120 of the switch I6I towbridge'the contacts 202202 connects the coil 222 of the relay. 22'3acrossthebusses III) and III in series with the normally closed contact 224 and the contacts of the push button 218. Energization of the coil 222' closes the contacts 232-232 and connects the motor 'I I acrossthe terminal's 233- 233.. The arrangement provides simultaneous energization of the motors II and 85 so that the capstan I5 and the coiling head 84 simultaneously advance the conductor 25 from the capstan 40 so that it may be coiled up by the coiling head 84.

As soon as the coiling head 84 is placed in operation, the 800 coil is removed from the coiling head 80 so that it is ready to coil up the conductor 25 upon the completion of an 800 coil on the coiling head 84. The high voltage circuit connected to the electrodes 55 and 67, whichwas deenergized when the conductor 25 was severed by the knife I3, remains deenergized until the selector relay I I4 is reset to its starting position by movement of the cover 8'! from the coiling head 80 to enclose the coiling head, which deenergizes the relay I37 and allows the contact I82 to resumeits normally closed position. This feature serves to keep the high voltage testing electrodes 55 .and 81 deenergized while the end s of the conductor 25 is being connected to the coiling head 84.

The coiling heads continue to operate in the manner described hereinabove, and alternately coil up 800 of the conductor 25 so long as the insulation of the conductor 25 does not contain a fault or splice which provides a path of reduced dielectric strength between the outer surface of the covering and the metallic conductor of the core I0. The lamp I5I, which is connected across the busses I I and I I I in series with the normally closed contact I50 of the relay I48 remains radiant'during this operation of the coiling heads 80 and 84 to indicate that the coils wound on the coiling head contain 800' of good conductor.

To maintain continuous operation of the coiling heads 80 and 84 so as to continuously produce 800"coils thereat, it is necessary to keep a continuous supply of the core I0 and conductor 25 passing through the apparatus. The supply reels and 90 are maintained at the extruding end of the apparatus to provide a continuous supply of the core I0. Let it be assumed that the conductor 25 is being coiled up in the manner described; and that the core I0 is being withdrawn from the reel II. When substantially all of the core II] has been withdrawn from the reel II, the operatorof the apparatus reduces the braking applied to the reel I I, whereupon the reduced tension in the core I0 between the reel and the capstan I2 permits the weighted pulley 20 of the cutover tower I8 to rise gradually to the top of the cutover tower. When the end of the core I0 leaves the reel II, the handle IOI of the clamp I 00 (Fig. 4) is actuated to its vertical position, whereupon the arm I05 clamps the conductor 25 against the bottom of the groove of the pulley I8 and prevents further movement of the trailing end of the core I0. This movement of the arm I05 also actuates the lever I08 of the switch I01 and opens the normally closed contact I61 (Fig. 7) of the switch I0! which disconnects the coil I564 of the'relay I85 from the busses III] and III. T Deenergization of the coil I60 allows the contact I10 to drop open and thereby disconnect the coil I'I'I of the relay I18 from the busses H0 and III which allows the contact I83 to open and deenergize the voltage regulator I8I which supplies the desired potential to the transformer I85, whereupon the high voltage testing circuit connected to the electrodes is deenergized. While the trailing end is stopped by the clamp IIO, the capstan I2 continues to advance the core I0 from the loop formed in its path of travel by the pulley 20, in'which case, the pulley 20 is gradually drawn towardsits lowermost position while thecoiling head 80 continues to coil up the conductor 25.

Immediately after the handle I 0| of the clamp I00 is actuated,'the trailing end of the core'I0 withdrawn from the reel 'I I issp-liced to the leading end of the core wound on the reel 98. While the operator is handling the end of the core I0, the testing electrodes and 61 are deenergized, in which case, the portion of the conductor advancing through the electrode 55 after the handle IOI was operated is not subjected to the high potential. I

However, the conductor 25, after passing through the electrode .55 which is deenergized due to the fact that the splicing operation is being carried on, makes a loop around the pulleys 80, GI, 82, 63 and 66 and then enters the electrode 61. By the time the portions of the conductor which passed the electrode 55 untested reaches the electrode 61, the connection between the ends of the cores have been completedand the clamp I00 released to reenergize the testing circuit; whereby this untested portion of the conductor is tested in the electrode 81. When the splice has been completed the handle IDI is actuated. to its horizontal position to release the conductor 25 and allow the capstan-I2 to withdraw the core from the reel 98. Suitable braking is applied-to. the reel 98 to create a tension in the core between the capstan I2 and the reel 98 sufficient to cause the pulley 20 to gradually return to its lowermost position. Since the high voltage testing circuit connected to the electrodes has been reenergized, no portion of the conductor 25 can pass the testing electrode 61 without being subjected to a high voltage test. The empty reel II is removed from the supports, and areel having a core like the core I0 wound thereon is positioned in the sup-1 ports and the leading end thereof prepared to v be spliced to the trailing end of the core being withdrawn from the reel 98 when all the coreqhas been withdrawn therefrom. I I

The outer and inner ends of the core wound on the reels II and 98 have a, specially prepared splice secured thereon so that the actual splicing operation between the ends of the coresmerely involves connecting the complementary portions of the splice together, an operation which can be completed in a relatively short period of time. The portions of the splice applied to the ends of the core is a metal structure and is designedto pass through the extruding head 23 and havean insulating covering applied therearound the same as thecovering is applied around the core I0. The splice on the end of the cores is secured to themetallic conductorof the core so that the core may be continuously advanced through the apparatus to the coiling heads and 84. When the splice passes through the electrodes 55 and 6'! it provides a path of reduced dielectric strength be: tween the electrodes and the metallic conductor of the core I0, whereupon sufficient current flows in the secondary winding I90 of the transformer I to energize the current responsive coil I9I of the relay I28 which closes the contacts I21 and I4 2. The breakdown of the insulation at the splice causes the energization of therelay I28 only so long as the splice is passing through one of the electrodes, that is, a substantially momentary energization of the relay I28 occurs under these conditions.

In addition to these metallic splice connectors'between cores which produce a point of reduced dielectric strength in the insulation of the conductor 25, defects may be present in the in sulatiomsuch asrsmall metallic.particlestemheddedf initheivulcanizediicoven'appliedaoverfthe core: I?

or: avoid-: the. insulating:- cover: itself. These;

types 'ot defects also provide pathstofireduced dielectricrstrengtl'rlwhich complete therhighrpotene tiaili testiiigi circuit of Ethertransformer: I85 to. grou-ml 'lat I 92 through; the: core a I 0;: andzenergizez the relayi'Ifl. Since .the splices betweenthecores: and th'efidefectsaiir theiinsulation;eachicause-thee: energizatiorr of the relay tliey= willhereinaf-t'errbe reterreditoasfaultsw v Since it is desirable to produce coils .containe ing'iiioo 'feet'io r good conductor; and'l'in'any' event to produceicoils which containratrleast'zoo feetioff goodiconductor; itiis necessary tof'prevent such faults irr the' insulation ifromroccurring within 2'00 feet from the zend offano'rmal 9800: foot coil.. Eon example; should. a--. faultioccur in. theinsulation after- 650Ifeet1ofi'good': conductor: has:.been coiled up by helcoilingheadiandizthei coils:were:-:termi'e.- hated: after SUO 1 feet :had been col-led up; such acoil would -produce a 650'?fOotIcoilandsat 150: foot coil"; minus the lengthof' conductoriremovedxfrom' the. coil in cuttin soutzthe :fault' or: splice; asithe' case mayfibezl Under these-'c0nditions;-the*il50 root coilmust be set asidev as waste, since. ital is: re.

quired -to harea minimum of 2.00.;feet"of goordtcone diictorineachcoillproducedi tiy the apparatusifor;

commercialkuse:

Th'e coilin'g. heads:- 80* and 84 are -=controlled.:by-' the c'ombined actlon' of the: counter. 86: and: the electrodes 55 and: 61: inathe followingimannerato prevent' -suchwaste of tries-conductor 25 lffthe insulation of the conductor 25 containsiai fault which-provides.a pathiofrsreduced :dielectric strength therein, such a fault .in passing through the electrodes 55Eand-:Ii 1 oloses theitestingcircuit including the coil? I9 I; the transformer winding In and the'core' lu to .gr'oun'df: at I 92 As. a re:- sultg .suflicient' current'iflowsiin theztesting circuit te -energize" the current coil. I91 of themelay I20 and close its normally open contactsil2' I and:.I42'; Assuming that the coiling "head 8 0 i is-rcoilin up the-conductor 25 if the fault in: the insulation of the-conductor engages either of the electrodes while the arm l20 engages eithenof'ithe firstthree contacts I2I-I2 I'i of the relay I28, itmmerelyeniergi'zes thescoil I 41 of; theflrelay: I4 81 which opens the-inormally closed. contacts I50 "and closes the normally-open con-tact I52: This deenergizes-the lamp l 5 I while the lamp I53 is: energizedto indi-.- cate that? a faulty'c'onductor is in the process of being coiled; up:

' Theoperationiof; the-fault detector relay I28 is momentary due: tofi-thetfact: that its coil I 9-.I. is energized; so long? as. at fault. is" passing. through the ele'ctro'd'e's 15.5:and 61.. However, .the-irela'y-"I 48 provided with; a; suitablellatching'r mechanism controlled by thereset' coil I 58 whichholds the contacts- I5li a-nd I52 in their actuated position aftenthe-fault leavesthe electrodes 55 and 61". This causesthe faulty coil lamp I53 toremaih radiant for the remainingportion of the coiling operation; that'is", untiltheknife 13' is automati cally operated bythe cam 9'I to terminate the coil in; process when 800 feet of the conductor has beencoild'up. If'the fault in theinsulation ofj theconductor 25 passes through both offthe elctrodesbefbre the. arm I engagedLits fourth position contact I2I, that is, befQreGOO-feetof theconductor has beencoiled up, it is not necessary to add additional footage of the conductor tmthefiflo foot coil becausesuch acoil can .be out tolremoyethe faultand.still.leave two coils T6: containing at: least 200 feet of? good;.conductorz perzcoil.

If axfault in the insulation. of :the. conductor. 2.5-.

passesthrough theifirst electrode 55;w lfiilerthe'a closure ofthe contact I2'I of the relay I28 ener.-.-=

gizes the-lamp. I53- as described above, .wher.eas. thesecond closure ofthe contact I21 connects, the coil 1250f the relay I26'across the busses H0! and. III in series. with the-arm I I20 of;the relay H4 and the contact I2'I of the relay. I28.. En.-- ergization of the: coil I25 opens the. normally, closedcontact I30, which thereafter is latched an. open. position I by the latch mechanism provided onthe: relay- I26. When 800. feet ofthe conductorihas been coiledupand the-:arm. I20 is1 advanced to engage. the fifth. contact.- I2I therein-- cuit connecting the coil I36 of the relay; I3]. across the-busses I I0: and- I II issopen.v circuited the-latched open contact I 30', whichopencir. cuit in turn preventsithe.energizationof. the re.- lay I31 andactuation oh the knife.-13.'by the; solenoid 1 4 at thisrpoint.

If:the: solenoid IA wereanot .preventedgfrom. operating the knife; 13 at this: point to .sever. the: conductor, the-800 foot coilon. the coiling head. would..:contain .a :fault somewhere. within theilasu 2010: feet of: the co ductor on. the: coil,. .which meanszthat .when the. fault is :removed from :such. a; coil,.,a coil-containing less -than;200: feet ofrgood,

conductorwouldresult. Since-suchv coils-:areunotl commercially: acceptable: under the :assumed requirements; thisiv would: amount to. a: substantial waste: of: the conductorv 25; However, the-penengizationofthefault detector. relay; I28uaftert600; feet-of;thexconductor was coiled-upon: the :coiling headin. operation prevents-the so1enoid: I4- :from actuating. the knife 13 when 800. feetehas-i been; coiled, in: which. case, the: coiling head; in op.-- erationi'continues to coil up the conductori 25'. When.v I000 feet of the conductor: 25: hasrbeen: coiled up, the arm. I20 is advanced to. engagethe' sixth contact 21.2. If no other fault passes through .the:e1ectrodesn55 and 61 while: the-con: tactzarmengaged the fifth contact I2 I asa soon asvthe; arm' engages the sixth contact; it*connects the coil I36zofthecrelay- I3IJacross thebusseszl I0 andeI I I throughthefnormally closed contact: I 43 of the. relay MI. Energization. of: the. coil; I36 closes the normally. openicontacts I451an'd 211i and. opens'ithet; normally closed; contacts.- I02 and. 2111; The. openingof: theicontactsri I82: and. 2H deenergizesz the; electrodes. 55" and. 651 and the motor driving. the coiling: head in; operation, re;- spectively, as previously described; The closureof; the; contacts I45Iand. 221 shortly. thereafter energizes thESOlGIlOidl'll whichactuates:.the'knife I3; to.:severthe conductor. 2.5, and energizes-the motor. 230' of the; timer 226; to beginxther-ztiming cyclecontrolling the operation of. the'motor i II, respectively; .as-previouslyv described above. Since the fault occurred inthe insulationlof'thescon ductor 25.:in-the manner described, the: coillon the coilinghead'contained 1000 feet of..the.conductor 25 whenthe conductor was-severed: andthe coil-l ing, operation: terminated; The "coil. canibe placed one suitable rewinding apparatus forthe purpose ofcutting the coil to remove the faultrfrom the coil '1 and: still leavetwo coils: each; of which: will contain at least- 200-feet of .goodconducton Even though the? completed. coil under theseecircume stances, contains 1000 feet of the conductor 25,

cient length of conductor25 through the tube 16 in order that the end thereof may be connected to the empty coiling head. After the conductor is connected to the empty coiling head, the cover 81 is moved to close that coiling head which movement operates the switches I6I and I63 in the manner described above and energizes the motor H and the motor driving the particular coiling head to be placed in operation. 1

Now let it be assumed; that a fault passes through the first electrode 55 after 600 feet have been coiled up on the coiling head 80. Due to the 200 foot loop between the electrodes 55 and 61, this fault will not pass through the electrode 61 until the coiling head had coiled up more than 800 feetof the conductor, in whichcase, such a coil cannot be' terminated when 1000 feet have been coiled up because the fault in the insulation would be withinthe last 200 feet of such a coil. Such a result under these conditions is prevented by causing the coiling head 80 to coil up 1200 feet of the conductor in the following manner. When the fault passes through the first electrode with more than 600 feet of the conductor on the coiling head 80, the arm I20 is engaging the fourth contact I2I, the energization of the relay I28 by the fault energizes the relay I26 which opens the circuit between the fifth contact I2I and the coil I36 of the relay I31. Hence, when the arm I20 is advanced to engage the fifth contact I2I, that is, the 800 foot contact, the solenoid 14 is not energized to actuate the knife 13 and sever the conductor due to the open contact I30, whereby the coiling head 80 continues to coil up the conductor.

w When the same fault passes through the second electrode 61, the coiling head has coiled up more than 800 feet of the conductor and the arm I20 now engages the fifth contact I2 I, in which case, the closure of the contact I42 because of the fault connects the coil I40 of the relay I II across the busses. Energization of the coil I40 opens the contact I43 which remains latched open and disconnects the coil I36 of the relay I31 from the sixth contact I 2I of the selector relay II I. When 1000 feet of the conductor has been coiled up on the coiling head, the arm I20 is advanced to the sixth contact I2 I, the conductor is not severed to terminate the coil because the open' contact I43 prevents energization of the coil I36 ofthe relay I31; The coiling head continues to coil up the conductor until 1200 feet thereof have been coiled up, whereupon the arm engages the seventh contact I2I and connects the coil I36 directly across the busses. Energization of the coil I 36 effects the operation of the knife 13 to sever the conductor and the termination of the coiling operation.

The 1200 foot coil may be cut to remove the fault and leave two coils, the smaller of which will contain at least 200 feet of good conductor.

In the case of multiple faults in the conductor 25 the position of the last fault to pass through the electrode 61 with respect to the length of the conductor coiled up at the time of such passage, controls the total footage of the conductor to be coiled up on the coil in process, 1 If all the faults pass through the second elecditions.

trode 61 before 600 feet of the conductor has been coiled up, the coil in process is terminated when it contains 800 feet of the conductor in the manner described hereinabove for these con- If a fault passes through the second electrode 61before 600 feet of the conductor is coiled up on the coil in process and a second fault passes through the second electrode before 800 feet of the conductor is coiled up on the Y coil in process, the second fault effects the termination of the coil in process when said coil contains 1000 feet of theconductor in the manner described hereinabove. If both faults pass through the second electrode 61 before 800 feet of the conductor is wound on the coil in process the second fault will effect the termination of the coil in process when 1000 feet of the conductor is coiled up. If a fault passes through the second electrode 61 after 600 feet have been coiled up and a second fault passes through the second electrode after 800'feet of the conductor is coiled up, the second fault will effect the termination of the coil in process when it contains 1200 feet of the conductor 25.

It is essential that the testing apparatus58, containing the electrodes 55 and 61 be positioned asclose to the knife 13 as the apparatus permits in order to obtain the above-described cooperation of the counter and the electrodes 55 and 61 in terminating the coils of the conductor wound on the coiling heads. By virtue of this arrangement, if the 200 foot loop of the conductor between the electrodes makes certain that the last 200 feet of the coil in process is not defective, because a fault in this loop keeps the coilinghead in operation until at least 200 feet up because this is the maximum footage the coil-' ing heads Hand 84 accommodate. The 200 foot loop between the electrodes 55 and 61 permits them to be deenergized while the connection is i made between an exhausted supply reel, and full supply reel, and it also permits the counter '86 to look ahead of the actual footage of the conductor coiled up at any time during a coiling operation and ascertain if the next succeeding 200 feet of the conductor to be coiled up is not defective, or if it is defective to prevent the coil from being terminated until the last 200 feet-of the conductor on the coil is not defective. The above-described arrangement of the coiling heads 80 and 84 prevents them from producing coils containing less than 200 feet of good conductor when it is necessary to remove faults or splices from the coils wound on the coiling heads. Since the coiling heads in operation only coil up 1000 feet or 1200 feet of the conductor 25 when a fault in the insulation of the conductor passes through the electrode 61 after 600 feet or 800 feet, respectively, of the conductor has been coiled up on the coil in process, no coils are produced containing more than 1000 feetof the conductor 25. Such coils are cut to make two separate coils in order to remove the fault which caused the coiling head to coil up more than the normal 800 feet of the conductor.

Alternate embodiment 7 i is airtomatically controlling the coiling headed) and 84 shownfinFigJZ-comprises the apparatus sshownin EigsflS, 1O, '11 and 1 2, which is-elec- =-trically 'controlled in accordance withthe wiring diagrams shown in Figs. 13 and 14. The alter- :nate embodiment of the invention includes-the use :of the additional apparatus shown in Figs.

:9 to .12, inclusive, 'in conjunction with a sub-' stantial portion of=the apparatusdescribed-inthe principahemhodirnent. 'The various elements or the principal apparatus-Which appear in thede- 'scription of the alternate embodiment-bear the :samewnumeral :designation raised by the addi- ':tion ofBOD thereto and'the additional apparatus :not :described hereinhe'fore is designatedby nu anerals of a higher orderthanthose given to the common elements of 'both embodiments, of the each-m :i-nventionto'prevent confusion with the-descrip- 'tion *of' the preferred embodiment of the invention. I

The alternate embodiment "comprises a switch H1555 suitably..mounted in "the "housing 312 so as tofoe actu'ated by-a U shaped'bracket 555 'fasjtene'd -to the knife 313 so; that after the-knife v :has completely severed 'the conductor 25, the

switch 546 is actuated. Theswitch556 contains 'asingle pole double throw contact-Which will be described in connectionwith the wiring diagram :shown injFig. 13. g g j A counter 54'! '(Fig. lm' is rnounted on the "outside of .the 'housing F352 and is arranged to 'be driven rby'the motor I311 to record the footage of the conductor 25 being coiled upby'the coil ing heads fifi-and 84. The counter 54'. is similar :to the counter 86, having units, tenths and "hundredths wheels 595-495 and in addition thereto a'thousandths wheel 558 which is driven in; a counter-clockwise direction in a conventional manner Iby {the hundredths wheel Mil/that is, uponzeachscomplete revolution of the hundredths wheel fiflli, the thousandths wheel 54% is advanced one digit. A cam 550' (Fig. 11) is secured to thefhundredths :wheel 395 for rotation therewith and 'is provided with four recesses 55! in the periphery thereof. Aro ller 393; carried by a pivotallyvinounted arm 595 is arranged to engage-the periphery of the cam 55!}. The free "endof thearm 394 engages the operating button of .a sensitive switch 595 mounted in the counter and identicalwith the switchiifi mountedin the counter 86. A-spring' 395'serves to urge'the arm downwardly so that the roller constantly en- :gages the periphery of the cam 555'. "The cam 55B is secured :on the'hundre'dths wheel 395 so that the recesses 551- 55! are positioned beitween the digitsiZ and"-3; 4 and 5; 6"

. and 7; and"8 and 9 marked on the periph- -erythereof. When the 0 digit is aligned with thew'indow of thecounter, the cain 555 assumes :the.positionshown"inFig. 11. e V

' )A second cam 552 (Fig 12) is rnounted in the,

counter 54'! for rotation with the 'thousandths wheel 548 and'has-a single recess 553 provided in its periphery which is positioned between the digits .8 and 9 marked on'the periphery of Y the 'thous'andths wheel. The counter 54! is also provided With a reset mechanism (not shown) whichis arranged to be actuated by a handle 558 "('Fig. the actuation of which restores the counting wheels 390398 and 548 to their nor- 'mal starting position, that is, with the .0 digit 1 of each Wheel positioned directly opposite the window of the counter. A solenoid 568 is mounted on the counter-support and suitably connected to the handle 5-58 so astooperate "the handle downwardly when energized. .-A"-:'roller spring 551*is provided for the purpose cf'nrging tithe pivotally 'mouritedarm 555 downwardly-so as toimaintain the roller 554 continuously in-bin V gagement with the periphery of the cam: 552.

ll he cams 5'50 arid-552 are showniri-Figs. I1 and it-2,:respectively, in their normal startin'giposirrtions, "that 1s, zwhen the'0 digits :of the hun- 'dredt'hs and 'thousandths rwheels are aligned diirectlyiopposite the window of the cou'nt'er The iarra'ngementfof *therecesses'55l I on the cam .55ilrpermits the arm to operate theswitch eii ".momentarily each 'time' the digits 2,*"'6', 8"

and 0 are advanced in *a counterclockwise "diirent'ronwhen viewed-in 'Fig.'11 to a position dirrectly- :opposite the window of "the counter; in wwhichzoase, ach time 200 feet, 600 feet; 800 '-'feet tend-5100.0 ifeet: ofithe conductor :2 5*iscoiled upfthe switch 3% is actuated.

smfllIhe-recess 553 is arranged on the-eam 552fso "as to permit the arm 555 to "actuate the "switch .3555 each :time the digit '2 0f the thousandths wheel :is advanced in a counterclockwise direcltion when Viewed in Fig. '12 to a *position directly opposite thewindowof "the counter} that is; each time 1120.0 feet :of 'the" conductor 25 has been coiled .up. The recess 553 on the cam 552 "is :aligned'with the recess'55I .onthe cam 555- since they lie .between 'the digits 8 r and 9 on their vrespective "counting wvheels, but the recess 55! (completes actuation oftheysWitch 395 when 2G0 zfeetiof the conductor is coiled up, Whereas the 1TCB$S2553 ipermitsth'e operation-of the switch 5'5fi when Il2001'feet of the conductor iscoiled'up.

. Referring now toFFig. l3,'there is shown aschezmatic wiring diagram :of the 1 electrical apparatus attending :a part "of "the :alternate embodiment of .the "invention :whichris arranged to be energized :irombusses-Mmand el"! which are connected to a suitablesource of A. C. potential. The .solenoid 5x555, which is arranged when energized, to actuate the 'reset lever 558 ofthe counter"5 i1, is ,iconnectedacross'the :busses 4 It and 4 I l in series iwithzainormally"open contact 55! provided on a .rrelay .552. Annperatin'g coil 435 of a=relay 451, which is similar to the relay [5! referred to in the preferred embodiment of the invention, is .also :oonnected tacross the buss'es 4 I5 and M I "in :series .With the normally open contact 561 of the :relay 562. Ansoperating'coil553 of the relay 1562 :is connected across "the 'busses 41.0 and M i in series with-anorinally open contact 554 provided 20.11.13 motor driven'timer-565. the normallvopen contact dim-provided 'on the switch 396 which 11'sarranged:to' be actuated by the cam -550fprosvided in the counter 55'! and a normally open icontact-555 provided in -a motor driven timer .555. #An -.operating 'motor 568 of :the timer v565 :is connected across the busses 4H] and M1 in .series with anormally open-contact 559 provided .on r-a :relay am. A normally open contact 511 "is provided .in the switch 556 which is actuated :by @thecam .552 -.of the .counter 554-1, is connected across the lousses-MU and 4-H in series with the operating .coil :553 of the :relay 552, the normally open; contact 4 t5 andth'e normally open contact 555. i

The relay 51-5 is xprovided'with an operating coil 552, which is rconnected across :the, busses iii-j) and M! tin-series with "the normally .open

"When the contact arm 518 21 contact M of the switch 386 open contact 566 of the timer 314, which actuates the knife and the normally 561. The solenoid with a contact 445 provided on the relay 431.

When the solenoid 314 actuates the knife blade 313, it also actuates'the operating lever of the limit switch 546. The switch 546 is provided with knife 313 it disconnects the motor 588 from the busses so that the timer may reset to zero, and

connects the reset coil 458 of the relay 448 across the busses 4H! and 4! I. Each of the relays 562 and 510 are provided with a spring-loaded latching mechanism arranged to latch their respective contacts in the position effected by the energization of their respective operating coils 563 and 512; The latching mechanism of the relays562 and 518 are arranged to be released by reset coils 516 and 511, respectively. The reset coils 516 and i 511 are connected in parallel, and one side of the parallel circuit is connected to the bus 4H and [the other side thereof is connected to the bus 418 in series with a parallel circuit including the normally open contact 442 of the relay 428 in one leg thereof and the contact arms 496 and 506 of the limit switches 46! and 463, respectively, inthe other leg thereof. 1

The remaining portion of the apparatus shown in Figs. l3 and 1e bearing numeral designations from 441 to 536, inclusive, is identical in constructionand operation with and is connected across the busses 410 and tin the saLme'manher as that described for the same apparatus shown in Figs, 7 and 8, with the exception that the contacts 486 and 586 of the limit switches 46! and 463 are arranged to energize'only the reset 00115516 and 511 when the cover is moved frombne coiling head to the other.

Operation of alternate embodiment V In the alternate embodiment of the invention, let it be assumed that the core I8 has been withdrawn from the reel l l and threaded through the apparatus as described in the preferred embodiment of the invention and that the extruding head 23 and extruder 24 are operating to apply an insulating cover around the core to form the conductor 325, and that the end of the conductor has been connected to the coiling head 88. When the cover 81 ispositioned to enclose the blade 313, is connected across the busses M8 and 4!! in series coiling head 88, the switches 46l and 463 are l actuated thereby so that the contact arms assume the position shown in Fig. 14, in which the contact arm 586 bridges the contacts 581-581 and connects the coil 415 across-the bussesv-4I8 and 4H in series with the normally closed contact 4 t .511 of the relay 431 and the contacts of the push button 5l8 which have been actuated to their closed position. The coil 415 is energized and closes its contacts 536-536 which connect the motor 382 across the terminals 533533 whereupon the motor 382 drives the coiling head 88 to coil up the conductor 25. The contact arm 5|8 of the switch 463 bridges the contacts 5l2-5|2 whereby the coil 522 of the relay 523 is connected across the busses 418 and 4 in series with the normally closed contact 524 of the relay 525 provided on the timer 526 and the contacts of the push button 518. Energization of the coil 522 closes the contacts 532-532 which in turn, connect the motor 3" arranged to drive the capstan 18 to the supply terminals 533-533. Thus, the

movement of the cover 1 advance and ously records the footage being th'e fault or splice is 81 to enclose the coiling head 88 resultsin the simultaneousenergization of the motors 3H and 382, which cooperate to coil up the conductor 25, respectively. i

The relay 465 (Fig. 13) is energized by virtue of the fact that its operating coil is connected across the busses 418 and 4| I through the normally closed contact of the push button 466 and the normally closed contact 461 provided in the switch 481 mounted on the cutover tower l8 and arranged to be actuated by the clamp 488.

Energization ofthe relay 465 closes the contact 418 whichtogether with the closureof the contact 412 upon energiza'tionof the coil 415, energizes therelay 418, which closes the contact 483 and thereby energize the auto transformer 48L The auto transformer 481 in turn energizes the stepup transformer 485 whereupon a high potential is impressed across the testing circuit including the secondary winding 498 and the electrodes 55 and 61. Since the metallic core of the conductor 25 is grounded at I 92, the insulating covering on the portion of the conductor 25 passing through the electrodes 55 and 61 is subjected to a potentialhaving an intensity suflicient to break down any faults therein providingpaths of reduced dielectric strength. i When the capstan '318 and the coilinghead 88 are placed in operation, the movable pulley 28 of the cutover tower I8 is in its lowermost position, and the movable pulley 44 carried by the bracket45 is positioned at the extreme left-hand 'limit of the track due to the fact that the tension in the conductor 25 is sufilcient to overcome the tension of the spring drum 5!]. The counter 541, mounted on the housing 312, is driven by the motor '31! in the manner described in the preferred embodiment of the invention and continuously records'the footage of the filamentary conductor being coiled up by the coiling head The coiling head 88 continues to coil up the conductor 25' and the counter 54! continucoiled up. M

The counter 541 including the cams 558 and 552 isarranged to automatically control the coiling heads 88 and 84 so that theyalternately coil "up a predetermined footage of theconductor 25, unless a fault or splice should occur in the insulation of the conductor, in which case, the coiling head in operation is caused to coil up an additional footage of the conductor 25 so that when removed from the coil, there will result two coils both of which will contain at least the required minimum footage allowed per coil. As stated in the preferred embodi ment of the invention, it is desirable to normally produce coils on the coiling heads 88 and 84 which contain 800 feet of good conductor and that no coils should contain less than 200feet or more than 1000 feet of good conductor.

The cams 558 and 552 provided on the counter 548, perform their respective functions to obtain these results in the following manner: Assuming that the coiling head 88 has been placed inoperation as described, when it has coiled up 200 feet of the conductor 25, the hundredths Wheel388 has advanced the earn 558 so that the first recess 55l passes under the roller 393 and permits momentary closure of the contact M5 of the switch 396. The first closure of the contact 4l5 does not cause energization of the coil 512 because the "1 is coiled up. The timer motor 588 is energized zasllong' zas rhusses 4%! D :and 3415! are energized :and ithersingle zpnle (double :throw switch 54-5 sis in 'tlieapositionishown iinsEigs l3, abut the timin period of itlreienergization {Of the motor and "the closure of its contact 565 is adjusted so toia'ilewfl itheiicoiling zhead fill to zco'il npatileastfidi) ieet of the monductorbeioneitheicontactrfiiifi is closed. if the conductor. :is being coiled up :at-the ratelof :minute, the timer 55! adjusted to close the contact 5166 Lone minute after the timer motor 15cc is-ienergized or "approximately one minuteiafter' the start of each :coilinghead.

The motor .58 stalls after it iclosesthe icontact $56 and holds the contact :closedmntil the timer .inotor circuit istinterruptedgby -;the -.op.eration :of

the switch 546 by :m'ovein'ent of Y the knife 3:! r When -the-coiling head -80 hEtSZCOilBd :uprexactly 16.00 .ieet :of the conductor, the'idigit 26 of the hundredths wheeleappears iopposite'ithe window iIlTlihB :connter 541, which movementof the ecounterwheel 39H advances the ham r550 iinra counter-clockwise direction so that the recess 5&1 which :is positioned betweenithe \digits "'2" eand f3 on the hundredths '-whee1 3.99, masses under Fthfi iroller [393' and allows a second momentary closure rof the znormally :open contact 415 =of the eswitchiaafi :(Fig. 13:) :Since thetimer i551 closed the contact 5% when (300 -feet of rllhe "conductor 'rtact 41.5 connects the coil "r51 2 of the relay 5-1 0 .across the lbusses 4-H] :and 4M awhich energizes the coil 351-2 and closes the normally i open'contact 563. The normally .open contact 3569 i is .latched linritsiclosed position-i-and connects ithetmotor 156.8 -:oi the ztimer 5.65 across the busses am and 14 11! which motor rotates a cam :to close the enormally ,ppenicontact 5554 of the timer latter -;a predeterfmined gperiod f time. The timer motor holds the contact 564 in (a closed-position *until :the .motor .!is disconnected :from the *busses (4th!) and 441. Theclosureiof the contact .584:connectsthe icon-5&3 of thesrelayififimacross therbussesdlaitl and 41 vI in series with the normally open contact 41:5

' of the switch .335 imountediin the (counter 54 1.

Thus, when the coiling head so has coiled up Thenenergization of the coil 436 :of *-.the -relay 431 -'QpBI1S- its normally I closed contact 482 which immediately adeenergizes the :high volta e testing circuit connected to thezelectrodes= fi5wand 611 and closes the contact 445 which connects itheisolenoid 3'14 across the vbussesJH-il and4tl. Enersgization of the :solenoid 31.4 .actuates the knifie' blade 31:3 whichsevers the-conductor 25. Atthe same time that thecontact+445 is closedtoiener- :g ize the solenoid 31-4 which severe the conductor 25, the contact ill-provided on the relay 4'31 :opens and discomiects'thecoil' llfi:from therbusses .4.!0 :and 4H which deenergizesthe coilandper- :mits contacts 536 -536 to open and disconnect the motor 382 vfrom the terminals 533. The de- -.energization of the motor 382 brings the-coiling head'80 torest-but .the capstan HLdriven by the :motor ;3.1I, continues to operate :because the normally closed contact 524 of the timer :526 has not been opened. However, the contact 52?! is closed simultaneously with the contact 445 upon =waseoiled esp, the :momentar-yiclosuraof the :con-

'theioperationof the relay 510 and the timer 565 toset up a circuit which depends upon a-subsequentclosure of thecontact 415 inorderto cause the solenoidfim toactuate the knife 313 to sever theiconductorlfi :and terminate the coiling operation. e

When exactl y 800 feetof the conductor 25 has been coiled up on the coiling head 80, the hundredths wheel 390 advances the cam so that the recesslifii positionedsbetweenthe digits 4 and .5 of thehundredths wheel .398 allows the arm $394 to move'downwardly and momentarily close the normally-open-contact' lI of the switchBSfi. The momentary closure of the contact 415 completes the circuit connecting'the coil 5E3 across the ibusses 4H! and 4H, whereupon the coil is energized and actuates the normally open contact 551 to its closed position, which contact is latched closed by the spring-loaded latching imechanismof the relay. Closure of the contact 561 simultaneously energizes the coil-436 of the the energization of the relay the motor-53!],whichafter a'predeterminedperiod of time; closes the cam operated switch 528, whichfineturn connects the coil 53Ilof the relay 525 across thebussesMO and4=l l. Energization of the :coil 53I opens the normally closedcontact "524 and deenergizes the :coil 522, whereupon the contacts 532-432 drop open and'disconnect-the motor 311 fromtheterminals 53:3-- 533.

The delay between the deenergizationiof the :motor 382 and theimotor 3H isprovided sothat after the solenoid 314 is energized ltoi-severthe conductor, the capstan "H1 isdriven by the motor 311 until a sufficient length of .conductor fi advanced through-the tube 16 :in order thatrit may :be connected to the empty coilinghead r84. .'As soon as the knife severs the conductor 125,211; thereafter actuates the :contact 515 of the switch 15.46 to disconnect the-motor 568M the timerifififl Sfrom .the'busses and connect thelreseticoil 4:58 :01. the relay 448 across the 'busses. ,This :arrangement provides for the resetting of the counter, the severing of the conductor by the solenoid 314 andthe resettingofrtherelay 448 .inarapidsuccess'ion so that this apparatusis restored to'r itstnnnmal starting position and ready to controltthe next succeeding coilmguoperation.

'When the capstan 310 comes :to a complete stop upon expiration of the timing period determined bythe timer 526, the end of the-conductor '25 at the coiling head "is not/being advanced, in which case, thespring drum SO 'urgesthepulley 44 to the right hand limit of its travel on th'e "T -rail 48. This movement of the pulley forms a "substantial reverse loop in the-path ot-travel of the conductor 25 from the capstan-"40. to' the capstan 310. The leading'end of the severed conductor 25 is connected-to the empty-coiling head 84 and the cover -81 is moved from "its extreme left hand position to its extreme right hand position to enclose the coiling "head 8 4. This movement of the'cover 81 actuates thelimit "switches 463 and 4M in the orderstatedjso that 'the'contact arms 506 and 5'l'll disengagetheirjr e spective contacts Edl-Elll 'andfEJ'Z -B-I-Z, whereas "relay 431 and the solenoid .560 which is arranged "to actuate the resetlever 558 of the counter M1.

The solenoidifill immediately actuates the reset lever .and resets the counting wheels of the counter to their normal starting position so that "they will'be in position torecord the .footage of the conductor coiled up by the next succeeding coiling operation.

the contact'arms l'flfi andEiilB-assume their'broken line positions and engage their respective-contacts 4-9L-491-andi502502.

As the cover SEpassedthrough the mid iposition between the coiling "heads *3]! and B ythe contact armiBGB ismoved intoengagement with the con tacts 462- 462 while the contact arm 4'SE-en'gages the contacts 466- 460. This arrangementeotlthe switches 46! and 463 connects thereset coils 51 6 431, and energizes 

